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led chip reflector and led filament
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Artis Sideley
Nov 4, 2016, 12:22:48 PM11/4/16
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I have equipped my 120° 1W chip led with somewhere near 50° secondary individual lenses and noticed that a fair quantity of light leaks through the side of those basically cylindrical lenses. Are reflectors better for this job ? how to select the right one ?
I read a test report made in 2014, endorsed by the swedish and belgian agencies of energy, comparing a dozen of warm white led lightbulbs shopped in the UK and sweden that showed that filament leds solutions are at least 30% more efficient that SMD led chips solutions. I am quite surprised because i thought that the most efficient leds are packaged in the chip format and the led filament is a technology/packaging patented by a taiwanese manufacturer and intended to replicate incandescent light bulb in decorative lighting.
I read a test report made in 2014, endorsed by the swedish and belgian agencies of energy, comparing a dozen of warm white led lightbulbs shopped in the UK and sweden that showed that filament leds solutions are at least 30% more efficient that SMD led chips solutions. I am quite surprised because i thought that the most efficient leds are packaged in the chip format and the led filament is a technology/packaging patented by a taiwanese manufacturer and intended to replicate incandescent light bulb in decorative lighting.
Artis Sideley
Nov 18, 2016, 6:02:44 PM11/18/16
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hello !!!
aruz...@general-cathexis.com
Mar 25, 2017, 10:20:36 AM3/25/17
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On Friday, November 4, 2016 at 11:22:48 AM UTC-5, Artis Sideley wrote:
> I have equipped my 120° 1W chip led with somewhere near 50° secondary individual lenses and noticed that a fair quantity of light leaks through the side of those basically cylindrical lenses. Are reflectors better for this job ? how to select the right one ?
>
If you are talking about non-aluminized plastic reflectors, they also leak light out of the sides but you can get black holders.
> I have equipped my 120° 1W chip led with somewhere near 50° secondary individual lenses and noticed that a fair quantity of light leaks through the side of those basically cylindrical lenses. Are reflectors better for this job ? how to select the right one ?
>
If the side light annoys you, you can put an opaque reflector around the lens.
So, you didn't take my advise to use 3w LEDs with 1w drivers?
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